In, Exists, Not In & Not Exists

Closing up the blog spotlight on Ric Van Dyke this week I actually give you two great articles that are roughly the same, but very different indeed!  First off, the article on if using the IN or EXISTS operators really gives a difference in current versions of Oracle is pretty interesting but his article on the difference between using NOT IN and NOT EXISTS operators takes the cake and I won't spoil the surprise at all.  Go read it, and you just mind find out that you'll learn something new from it!